Add logo used on the website.

Makefile.am

@@ -96,7 +96,7 @@ EXTRA_DIST = \
 	autogen.sh \
 	bugs-in-changelog.sh \
 	update-bugs.sh \
-	logo/fish.svg
+	logo/fish.svg logo/fish.png
 
 # Recipes web page.
 html/recipes.html: $(wildcard recipes/*.sh) $(wildcard recipes/*.html) $(wildcard recipes/*.example) Makefile make-recipes.sh

src/guestfs.pod

@@ -2382,6 +2382,10 @@ Some "phony" guest images which we test against.
 
 L<virt-inspector(1)>, the virtual machine image inspector.
 
+=item C<logo>
+
+Logo used on the website.  The fish is called Arthur by the way.
+
 =item C<m4>
 
 M4 macros used by autoconf.